Howard wilson eoop



2 Sheets-Sheet 1..

(No Model.)

H. W. ROOP.

EXGAVATOR.

No. 370,970. Patented 001;. 4, 1887 ATTORNEYS.

2 Sheets-Sheet 2.

(No Model.)

H. W. ROOF.

EXGAVATOR.

Patented Oct. 4, 1887 I INVENTOR: fig

ATTORNEYS.

Ohm

UNITED STATES PATENT. OFFICE.

HOVAR-D \VILSON ROOP, OF MOMEEKIN, FLORIDA.

EXCAVATOR.

SPECIFICATION forming part of Letters Patent No. 370,970, 4, 1887.

Application filed July 7 1887. Serial No. 243,688. (No model.)

I To aZZ whom, it may concern.-

Be it known that I, HOWARD WILsON Roor, of McMeekin, in the county ofPutnam and State of Florida, have invented a new and useful Improvementin Excavators, of which the following is a specification.

This invention is an improved excavator, and seeks especially to provideimprovements on the excavating apparatus covered by Patent No. 361,895,granted me April 26, 1887.

The present invention consists in certain constructions and combinationsof parts, as will be described and claimed.

In the drawings, Figure 1 is a plan view of my invention, the same beingrepresented somewhat in diagrammatic form. Fig. 2 is a partial sideelevation thereof. Fig. 3 is a detail partial front view of the mainframe. Fig. 4 is a detached section on about line 00 00, Fig. 1. Fig. 5is a detail view showing the means for securing the end of the removablepulleysupporting bar. Figs. 6 and 7 are detail views of thedumping-incline, and Fig. 8 shows the carrier-frame.

The improved apparatus comprises a shore pulley and driving mechanismtherefor, a bog anchor and its pulley, an endless cable, andexcavator-bowls, which may be similar to the same parts shown in myformer patent above referred to. In the present case I provide aguide-pulley, A, for the endless cable, arranged near the bog anchor. Itmay be for guiding the incoming or outgoing portion of the cable. Suchpulley serves to hold the incoming and outgoing portions sufficientlyapart to prevent the contact of the excavator-bowls moving in oppositedirections.

The shore frame B consists of beams bolted together, so it can beconveniently set up and taken apart for moving from place to place, andis in practice braced by a guy rope or cable, 1), extended rearwardlyfrom the frame and staked to the ground. This frame has at its front andrear ends lateral wings at B, which extend the base, and so serve tosupport the frame without necessitating the driving of any posts intothe ground.

In the present instance, instead of supporting the pulleys O O in themain frame proper, as in the former case, they are j ournaled in a beamor block, 1, resting in seats 2 in said main frame proper, and securedby latches 3.

The pulley O for the incoming portion of the cable is on a line with thedriving-pulley B while the pulley G for the outgoing part of the cableis elevated, so the cable will not rub or chafe'where its portions crossin rear of the drive'pulley. This last pulley is also set at an angle tothe horizontal, so-that the rope.

plays true to its face and does not chafe the edge of the pulley. I alsoplace this pulley for the out-going cable nearer the center of the block1 with respect to the widthof the machine, so that it more readily takesthe rope from the driving-pulley. The cable passes from the pulleys Cover pulleys O C in the front of the shore frame proper, and on theoutgoing portion of such cable, in advance of the pulley O, I suspendthe slack weight L, using in the present instance only one of suchweights.

The main shore frame is provided with an auxiliary frame, B whichextends forward alongside of the incoming portion of the cable, and onit I support the detacher 13 which is shown as a plate secured to theframing B adjacent the said incoming portion of the cable. This detacherB on the shore frame is adjustable, being secured by bolts, so it can bemoved or swung to position to be properly engaged by the hook of thegrip, and this adjustment may be vertical by means of the bolt holes atin the frame 13 and the adjustment of thebolts securing the detachertherein, as well as lateral by turning the frame B on the bolts 5,connecting it with the main frame.

It will be understood that this adjustment is desirable, as in puttingmuck in piles as the muck accumulates it becomes necessary from time totime to change the line of draft as the pile gets higher atdifferentpoints.

A frame,0, which for convenience of reference I term the carrier-frame,has a pul ley, 0, over which passes the outgoing portion of the rope.This carrier keeps the rope off the ground and is movable, and may beset farther back as the excavating proceeds. To this frame Isecure thedetacher-plate B*,which serves to detach the outgoing excavator. Thedctacher in this carrienframe is usually stationary.

The gripbar K is similar to that shown in my former patent, except thatat its slotted end a hook, K, is provided,which, by engagement with thedetachers, serves not only to free the grip from a binding engagementwith the cable, but also detaches the grip from the cable, as will beunderstood from the drawings. There desired, the detachers may bearranged on opposite sides of the cable, so that particular care neednot be taken in applying the grips to the cable. In case the de'tachcrsare doubled the hooks are also doubled.

On the shore where the excavators or scrapers are emptied I provide aninclined plane, I, under the incoming port-ion of the rope, and up whichthe excavators proper are drawn in the practice ofthe invention. At thecrown ofthis incline I provide a cleat, t, or other suitable trip whichis engaged by the excavators, and the latter are turned to dump, ifdesired, intn wagons or carts driven below. Now, it will be seen that bysuch construction the dumping of excavators may be automaticallyeffected.

The general operation is similar to that described in my former patentbefore referred to, the excavators beingfilled and drawn in by theincoming portion of the cable and returned em pty on the outgoingportion ofthe said cable.

Having thus described my invention, what- I claim as new is 1. In anexcavating apparatus, the combination of the bog anchor, the endlesscable, the shore pulley, the shore frame proper, a beam or blockprovided with guide-pulleys for said cable, and a latch for securingsaid beam or block to the shore frame proper, substantially as setforth.

2. In an excavating apparatus, the combina tion of the shore fran1e, abog anchor, an endless cable,and grips for connecting the scrapers withthe cable, and a detacher connected with the shore frame adjacent to thecable and adjustable, substantially as set forth.

3. In an excavating apparatus, a grip for attaching the scraper to thecable, consisting of the bar having a slot to fit over the cable and ahook for engaging the detacher, combined with a detacher, substantiallyas set forth.

4. An excavating apparatus, substantially as described, comprising thebog anchor, the shore pulley, the endless cable having incoming andoutgoing portions, the carrier-frame having a guide for the outgoingrope, and the incline having a trip for the scraper and lo cated underthe incoming portion of the cable, said carrier-frame and incline beingarranged between the bog anchor and the shore pulley, substantially asand for the purposes specified.

5. In an excavating apparatus, the combination,with the shore pulley andthe bog anchor, ofthe cable and the carrier-frame having a pulley forthe cable, and arranged between the pul- 'ley and anchor and movable,substantially as set forth.

6. The improved excavating apparatus described, consisting of the shoreframe having a detacher-plate and guide-pulleys for the cable, the shorepulley, the cable, the scrapers, grips for connecting them with thecable, the carrierframe having a detacher-plate and provided with apulley for supporting the cable, the incline having a trip for dumpingthe scrapers, and the bog anchor, substantially as set forth.

HO\VARD WILSON ROOF.

